{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:LQDLV4VK3AUABG45I76SHJD7FB","short_pith_number":"pith:LQDLV4VK","canonical_record":{"source":{"id":"2311.03120","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-11-06T14:15:00Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"6ba8bdb5a5d7c7c8b6137a7999d4ad68ff2aef0afc5faedd3cb19086424b1507","abstract_canon_sha256":"7f0d3867f5cbb5f15a857921c58c5ddea7b75199c2dc98569e233eb1e3b668ac"},"schema_version":"1.0"},"canonical_sha256":"5c06baf2aad828009b9d47fd23a47f2878a548f68e1458c2577fffd8ae0fd76d","source":{"kind":"arxiv","id":"2311.03120","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2311.03120","created_at":"2026-07-05T07:09:56Z"},{"alias_kind":"arxiv_version","alias_value":"2311.03120v2","created_at":"2026-07-05T07:09:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2311.03120","created_at":"2026-07-05T07:09:56Z"},{"alias_kind":"pith_short_12","alias_value":"LQDLV4VK3AUA","created_at":"2026-07-05T07:09:56Z"},{"alias_kind":"pith_short_16","alias_value":"LQDLV4VK3AUABG45","created_at":"2026-07-05T07:09:56Z"},{"alias_kind":"pith_short_8","alias_value":"LQDLV4VK","created_at":"2026-07-05T07:09:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:LQDLV4VK3AUABG45I76SHJD7FB","target":"record","payload":{"canonical_record":{"source":{"id":"2311.03120","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-11-06T14:15:00Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"6ba8bdb5a5d7c7c8b6137a7999d4ad68ff2aef0afc5faedd3cb19086424b1507","abstract_canon_sha256":"7f0d3867f5cbb5f15a857921c58c5ddea7b75199c2dc98569e233eb1e3b668ac"},"schema_version":"1.0"},"canonical_sha256":"5c06baf2aad828009b9d47fd23a47f2878a548f68e1458c2577fffd8ae0fd76d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:09:56.636707Z","signature_b64":"QZpvcxCRP+5iPwJ5dSkilhB+NnIa73LTO6+9aLG9dZfcuugso5BaNBNZ71WEDI3sQH90A8Oupa6RAGAkaRVhCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5c06baf2aad828009b9d47fd23a47f2878a548f68e1458c2577fffd8ae0fd76d","last_reissued_at":"2026-07-05T07:09:56.636205Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:09:56.636205Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2311.03120","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T07:09:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5LX/WZpeHxyutIM5MLtHL03ntL7ai5t+mWAQyqI2fVykBDoTGWvTd02GqVR4VAaGigfTmVQGvpcnE/F8N8jdBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T01:17:52.966383Z"},"content_sha256":"6c77aab2245fc235e055e2acd04bc2fd6c0f7151a5cb68906607fa79820dc1a8","schema_version":"1.0","event_id":"sha256:6c77aab2245fc235e055e2acd04bc2fd6c0f7151a5cb68906607fa79820dc1a8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:LQDLV4VK3AUABG45I76SHJD7FB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Near-Infrared Ca II Triplet As An Stellar Activity Indicator: Library and Comparative Study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Hailong Yuan, Han He, Haotong Zhang, Jinghua Zhang, Mengxin Wang, Mingkuan Yang, Ming Zhou, Xin Huang, Yao-Quan Chu, Yiqiao Dong, Yongheng Zhao, Yong Zhang, Yu-JI He, Zhongrui Bai","submitted_at":"2023-11-06T14:15:00Z","abstract_excerpt":"We have established and released a new stellar index library of the Ca II Triplet, which serves as an indicator for characterizing the chromospheric activity of stars. The library is based on data from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) Low-Resolution Spectroscopic Survey (LRS) Data Release 9 (DR9). To better reflect the chromospheric activity of stars, we have defined new indices $R$ and $R^{+}$. The library includes measurements of $R$ and $R^{+}$ for each Ca II infrared triplet (IRT) from 699,348 spectra of 562,863 F, G and K-type solar-like stars with Si"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2311.03120","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2311.03120/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T07:09:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H7g4oxO53K2bPUd3D6dH125G8rKdYQ2Q2SgOT5hecxXk2B/mTIvd9wvNFJgn+CVi4cKL3mkgoTxt6V3J4hKhBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T01:17:52.966903Z"},"content_sha256":"7f35be4b6783ded06189e911734313f2076e8761269fbc550472f520e989c1b4","schema_version":"1.0","event_id":"sha256:7f35be4b6783ded06189e911734313f2076e8761269fbc550472f520e989c1b4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LQDLV4VK3AUABG45I76SHJD7FB/bundle.json","state_url":"https://pith.science/pith/LQDLV4VK3AUABG45I76SHJD7FB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LQDLV4VK3AUABG45I76SHJD7FB/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-21T01:17:52Z","links":{"resolver":"https://pith.science/pith/LQDLV4VK3AUABG45I76SHJD7FB","bundle":"https://pith.science/pith/LQDLV4VK3AUABG45I76SHJD7FB/bundle.json","state":"https://pith.science/pith/LQDLV4VK3AUABG45I76SHJD7FB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LQDLV4VK3AUABG45I76SHJD7FB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:LQDLV4VK3AUABG45I76SHJD7FB","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"7f0d3867f5cbb5f15a857921c58c5ddea7b75199c2dc98569e233eb1e3b668ac","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-11-06T14:15:00Z","title_canon_sha256":"6ba8bdb5a5d7c7c8b6137a7999d4ad68ff2aef0afc5faedd3cb19086424b1507"},"schema_version":"1.0","source":{"id":"2311.03120","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2311.03120","created_at":"2026-07-05T07:09:56Z"},{"alias_kind":"arxiv_version","alias_value":"2311.03120v2","created_at":"2026-07-05T07:09:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2311.03120","created_at":"2026-07-05T07:09:56Z"},{"alias_kind":"pith_short_12","alias_value":"LQDLV4VK3AUA","created_at":"2026-07-05T07:09:56Z"},{"alias_kind":"pith_short_16","alias_value":"LQDLV4VK3AUABG45","created_at":"2026-07-05T07:09:56Z"},{"alias_kind":"pith_short_8","alias_value":"LQDLV4VK","created_at":"2026-07-05T07:09:56Z"}],"graph_snapshots":[{"event_id":"sha256:7f35be4b6783ded06189e911734313f2076e8761269fbc550472f520e989c1b4","target":"graph","created_at":"2026-07-05T07:09:56Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2311.03120/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We have established and released a new stellar index library of the Ca II Triplet, which serves as an indicator for characterizing the chromospheric activity of stars. The library is based on data from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) Low-Resolution Spectroscopic Survey (LRS) Data Release 9 (DR9). To better reflect the chromospheric activity of stars, we have defined new indices $R$ and $R^{+}$. The library includes measurements of $R$ and $R^{+}$ for each Ca II infrared triplet (IRT) from 699,348 spectra of 562,863 F, G and K-type solar-like stars with Si","authors_text":"Hailong Yuan, Han He, Haotong Zhang, Jinghua Zhang, Mengxin Wang, Mingkuan Yang, Ming Zhou, Xin Huang, Yao-Quan Chu, Yiqiao Dong, Yongheng Zhao, Yong Zhang, Yu-JI He, Zhongrui Bai","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-11-06T14:15:00Z","title":"Near-Infrared Ca II Triplet As An Stellar Activity Indicator: Library and Comparative Study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2311.03120","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:6c77aab2245fc235e055e2acd04bc2fd6c0f7151a5cb68906607fa79820dc1a8","target":"record","created_at":"2026-07-05T07:09:56Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"7f0d3867f5cbb5f15a857921c58c5ddea7b75199c2dc98569e233eb1e3b668ac","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-11-06T14:15:00Z","title_canon_sha256":"6ba8bdb5a5d7c7c8b6137a7999d4ad68ff2aef0afc5faedd3cb19086424b1507"},"schema_version":"1.0","source":{"id":"2311.03120","kind":"arxiv","version":2}},"canonical_sha256":"5c06baf2aad828009b9d47fd23a47f2878a548f68e1458c2577fffd8ae0fd76d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5c06baf2aad828009b9d47fd23a47f2878a548f68e1458c2577fffd8ae0fd76d","first_computed_at":"2026-07-05T07:09:56.636205Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:09:56.636205Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QZpvcxCRP+5iPwJ5dSkilhB+NnIa73LTO6+9aLG9dZfcuugso5BaNBNZ71WEDI3sQH90A8Oupa6RAGAkaRVhCg==","signature_status":"signed_v1","signed_at":"2026-07-05T07:09:56.636707Z","signed_message":"canonical_sha256_bytes"},"source_id":"2311.03120","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6c77aab2245fc235e055e2acd04bc2fd6c0f7151a5cb68906607fa79820dc1a8","sha256:7f35be4b6783ded06189e911734313f2076e8761269fbc550472f520e989c1b4"],"state_sha256":"108c03e7c6a116d1b66bb8f58f33a8f5f1a35171b02ecfdda447624f7a1f3be6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IP2SLWSlPXtbJ9zeSUDBoQW1yWiScwp8KBuLCCtfsKzIzAX5q8zq6xD+To1R68EisbifrnRY3iNdBf54FQ8OBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T01:17:52.973434Z","bundle_sha256":"2fbfe5fb531b813ebb842835034f277dbc85635456370573832f0a03e42710bc"}}